Compact Laser Light Source With Interlaced Optical Plates
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Solution Overview
Problem
Conventional laser array light source modules have a complex structure, large footprint, and limited flexibility in color adjustment, leading to poor projection spot quality and increased volume in projection display apparatuses.
Innovation Solution
A light source apparatus with a novel optical module structure comprising multiple laser arrays and optical plates with interlaced transparent and reflective portions, allowing for efficient concentration and adjustment of laser light beams in a compact form, enhancing brightness and color combination flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional optical module consisting of an optical lens assembly is used, then the laser light beams can be refracted and reflected towards the same direction, but the structure becomes complicated and the volume increases
Solution Approach 1:
The optical module is segmented into multiple independent optical plates (first optical plate, second optical plate, third optical plate) with distinct transparent and reflective portions. Each plate handles specific light paths from different laser arrays, allowing independent optimization of each segment rather than a monolithic complex structure.
Solution Approach 2:
The patent transitions from conventional single-plane optical arrangements to a multi-dimensional configuration where optical plates are arranged in space with different orientations. The intersecting optical plates create multiple light paths in three-dimensional space, enabling compact integration without increasing volume.
2Reliability
If conventional laser arrays are disposed on the side of a conventional optical module, then the laser light can be processed, but the footprint increases
Solution Approach 1:
Multiple laser arrays (first, second, and third laser arrays) are merged into a single compact optical module structure. The optical plates are arranged to process light from all laser arrays simultaneously and integrate them into a unified output beam, eliminating the need for separate processing paths for each array.
Solution Approach 2:
The optical plates are nested and intersecting within a compact volume. The first optical plate, second optical plate, and third optical plate are positioned such that they overlap in space, allowing multiple light paths to share the same physical volume rather than requiring sequential or parallel arrangements that would increase footprint.
3Reliability
If a conventional optical module is used, then the structure is established, but the flexibility in adjustment of color combinations is limited
Solution Approach 1:
The optical module incorporates adjustable elements that allow dynamic reconfiguration of light paths. The intersecting optical plates can be positioned at different angles and orientations to adjust the relative weighting of different laser array outputs, enabling flexible color combination adjustments while maintaining structural stability.
Solution Approach 2:
The system allows changes in optical parameters such as the angles of incidence and reflection at the optical plates, as well as the positioning of the plates relative to each other. By adjusting these parameters, the color composition of the output beam can be modified without changing the fundamental structure of the module.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus achieves a more compact and flexible light source with improved brightness and color adjustment capabilities, integrating laser light beams from multiple areas into a single plane, thereby forming a better projection spot with enhanced optical performance.
Implementation Method 1
the first light is directed to travel along an emergent direction after passing through the first transparent portion and the second transparent portion
Implementation Method 2
the second light is directed to travel along the emergent direction after being reflected by the first reflective portion; the third light is directed to travel along the emergent direction after being reflected by the second reflective portion
Data Source
AI summary
A light source apparatus comprising an optical module is disclosed. The optical module has a first optical plate and a second optical plate. The first optical plate comprises a first transparent portion and a first reflective portion. The second optical plate comprises a second transparent portion and a second reflective portion. The light source apparatus comprises a first laser array, a second laser array and a third laser array for projecting a first light, a second light and a third light towards the optical module along a first incident direction, a second incident direction and a third incident direction, respectively. The first light passes through the first and second transparent portions to travel along the emergent direction. The second light reflected by the first reflective portion travels along the emergent direction. The third light reflected by the second reflective portion travels along the emergent direction.